Flush-tank



W. R. HUR'SE'Y. FLUSH T ANK.- APPucATioN msn SEPT. 25. 1919.

Patented Jun@ 14, 1921.

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W. I1A HURSEY.

FLUSH TANK.

APPLICATION FILED SEPT.24. |919- Patented June 14, 1921.

2 SHEETS-SHEET 24 W [Hursey, 77%@ 6%@ UNITED STATES WILLIAM RALPH HURSEY, OF ASHEVILLE, NORTH CAROLIN A, ASSIGNOR OF ONE- FOURTH To BAsIL H. on'rns, or TUsCALOOSA, ALABAMA FLUSH-TAN K.

Application :ned september 24, i919.

To all whom z'z may conce/m.' Y

Be it known that I, VILLIAM R. HUnsnY, a citizen ot the United States, residing at Asheville, in the county of Buncornbe and State of North Carolina, have invented certain new Vand useful Improvements in F lush- Tanks, of which'the following is a specification.

This invention relates to flush tank apparatus and more particularly t0 apparatus et the general type disclosed in my prior Patseeks to provide improved details ot con` struction not present in vmy former design. Among such details are an improved inlet and outlet valve and a simpliiiedarrangement of interlocking parts whereby these two valves are opened Vand closed at the proper time by means of a float lever.

In order that the invention may be readily understood, reference is had to the accom-V panying .drawings forming plication, and in which:

Figure 1 is a sectional view of a iiiish box ortank equipped with my improved valve mechanism, parts being in elevation and showing the tank full;

Fig. 2 is a similar view on an enlarged scale, parts being broken away, and showing the outlet valve open and locked;

Fig. 3 is a view similar to 2 but showing the outlet valve closed and the float lever in its lowermost position;

Fig. d is a plan view of the parts shown in F ig. 3, a portion of the outlet valve bebroken away: l

Fig. 5 is a transverse section on the line 5 5 of F ig. 3 looking in the direction of the arrow;

Fig. G is a transverse section on the line 6 6 of Fig. 3 looking in the direction of tl e arrow; and

part ot this ap- Speciificaton of Letters Patent.

patent,

Patented J une 14, 1921. Serial No. 326,017.

Fig. 7 is an elevation guide `member forming invention.

Referring to the drawings in detail, 1 designates vthe usual tank or flush box which may be of any desired construction. 2 designates the threaded stem or nipple of the inlet valve seat, and 3 the threaded nipple of the outlet valve seat.'

VIhe usual overflow pipe is indicated at a, and into this extends the upper end of a re-ill tube 5, which is generally employed.

G designates any suitable lloat. This is carried by a lever 7 adj ustably connected bv means of slot 8 and bolt 9 with an arm 1l) forming an extension of a lever 11 pivoted at 12 between two fixed arms 13 rigidly carried by the inlet valve casing or body 15.

leierring to Fig, 5 it will be seen that this valve casing is provided with a discharge opening 1G at one side thereof, rthrough which water flows into the box. he re-ll tube 5 also extends into this cas- 17 designates a central bore or open-y ing extending througlithevalve body and terminating at its upper end in a valve seat 18 haif'ing a thin upper edge. This valve seat is disposed concentrically of the casing 15. The parts 5, 16 and 17 are so proportioned that sufcientwater can flow through 17 to supply both 5 and 16. In other words, the water i'iows into the body 15 of the valve at a rate high enough to create sufficient pressure to lift itfthrough the refill tube 5, notwithstanding the restricted opening 1G.

The chamber within the valve body is closed at the top by means of a reciprocating disk valve 2O having a flange 21 which fits snugly within the chamber of the valve body. withinwhich is mounted a cushion 19 ot rubber, leather, or the like, adapted to engage-the valve seat 18 when the valve 20 is lowered. Y

At the top of the valveV 2O are a pair of guide lugs 22, between which freely works a valve operating lever 23, pivoted at 25 to bracket 26 carried by the valve body 15.

At the forward end of the lever 23 is formed a concave notch or seat 24 in which is received a pin 14 carried by the lever 11 above mentioned. It will thus be seen that when thel float lever 7 is in its raised position as shown in Figs. 1 and 2, the pin 14 bears down upon the end of lever 23 thus of the improved part of my present VThe valve 20 has a central recess 9 forcing the valve and disk 19 firmly against the seat 1S, thereby shutting off the flow of water into the box. l/Vhen, however, the float lever 7 is lowered, the lever 23 1s released and the water pressure forces the valve 2O upwardly, thus permitting water to flow into the tank.

The outlet valve body is provided with an annular ilange 27 by which it is supported on the tank bottom, and terminates at its upper end in a. thin edged valve seat 28. The overflow pipe 4 is set into a branch 4a of the outlet valve body and communicates with the interior thereoi" through a port 4"4 Adapted to cooperate with the valve seat 23 is an outlet valve designated in its entirety by the reference numeral 29. This valve comprises a flat, circular casing having ports 31 therethrough to prevent possible trapping of water therein. The lower edge ot the casing 30 is provided with a series ot inwardly projecting lugs 32. lVithin the casing are disposed a metal disk 33 and a disk 34 ci rubber, leather, or otherV Asuitable material, the instal disk having lugs adapted to cooperate with the lugs 32 to retain the disk in position. As will be obvious. the lugs 35 are capable of passing through the spaces between the lugs 32, and then. when given a partial turn, the disk will be retained behind the lugs 32.

The casing 30 is provided at its center with an inwardly projecting bump or protuberance 36 having a convex surface adapted to bear upon the center of the metal disk 33. 1t will be obvious that this arrangement permits the metal disk to partake of slight angular movement relative to the casing 30 and thus cause the disk 34 to lie snugly against the seat 28, thus compensating tor any inaccuracies of size or adjustment in `the valve levers and associated parts.

The casing 30 is provided with a hollow boss 37 into which is secured one end of a lever 33. This lever' is adjustably secured at its other end by means of a set screw in a socket carried by a catch 39, pivoted at 12 to the iixcd bracket 13. This catch 39 is preferably provided near its upper edge with a laterally projecting lug 40, this serving to increase the width of the catch. l

A. relatively heavy gravity latch 41 is pivoted at 25 in substantially the same plane as Vthe lever 23 and is provided at its free end with a notch or hook 42 adapted to engage the lug carried by the catch 39. Fig. 2 shows these parts in engagement.

The latch 41 is adapted rto be released from the lug 40 and catch 39 by means of the pin 14 carried by the float lever. This pin is arranged to engage under a central fin or lug 43 projecting `from the lower side of the latch 41 and thereby lift said latch. The forward sideV of lug or lin 43 is recessed to ing displaced laterally relative to the seatV 2S, 1 Vpreferably provide a guide bracket adapted to engage the valve stem or lever 33. This bracket preferably consists of a sheet metal ring or washer 48 adapted to bev clamped between the flange 27 and the bot 7 torn oi? the tank. This washer 43 carries an upstanding arm 49, the upper end of which is biturcated to form a pair oi guide niembers 50 having between them a slot in which the valve lever 38 works. 1t will be noted that the Iguide bracket 49 is angularly adjustable relative to the outlet val "e body and associated parts, such angular adjustment being readily accomplished by shifting the ring 48 around the va ve body to any desired location before itis clamped in position, as b v means of a lock-,nut 3a. rThis angular adjustment is important from a practical standpoint for the reason that inlet and outlet openings are disposed in diilerent relations in different makes ot tanks. By having the bracket adjustable it becomes possible to properly assemble the parts et my iniproved Y valve mechanism whatever may vbe the location ot' the inletopening relative to the outlet. Y 'n Y The operation ot the apparatus as a whole will now be briefly described. lith the tank full and the float in its elevated position as shown in Fig. 1, the inlet valve will be held closed by the pressure ci the pin 14 on the end of lever 23. When it is desired to flush the tank the lever 47 is operated, thus lifting the valve casing 30 and associated parts troni the seat 28 and permitting the water to escape through the outlet 3. The lifting of the valve `casing 30 rotates the latch 39 clockwise about its pivot 12 until the hook 42 of the latch 41 drops by gravity over and engages the lug 40 as clearly shown in Fig. 2, thus 'locking the outlet valve in 'its raised or open position. The parts remain in this position while the water is running out and the float gradually falling. When the float linally reaches its lower position, as indicated in Fig. 3, the pin 14 carried by the float lever engages under the iin or lug 43 and thus lifts the latch 41 out of engagement with the lug 40. This permits the valve casing 30 and associated parts to fall by gravity from the dotted line position in Fig. 3 to the full line position, thus closing iio iso

the outlet. At the same time the pin 14 has been moved away from lever 23, thus permitting the inlet valve to be forced open by water pressure, and allowing the tank to till.

It will thus be seen that I have provided a very simple arrangement in which the float lever serves to actuate the inlet valve and also to control t-he gravity latch which locks the outlet valve in raised position during the time that the water is running out of the i tank. It will also be seen that I have provided both inlet and outlet valves of improved construction, and it is thought that the many advantages of my invention will be 'appreciated by those skilled in the art without further discussion.

`What I claim is l. In a flush tank apparatus, a float operated lever and outlet valve lever independently mounted about a common pivot, a hook arranged to engage and hold the valve lever while permitting free movement-of the float lever, and means carried by the float lever for shifting said hook out of engagement with the valve lever.

2. In a flush tank apparatus, an inlet valve lever, an out-let valve lever, a latch controlling the latter, anda float lever having a part adapted to engage either said inlet valve lever or latch.

3. In a. flush tank apparatus, an inlet valve lever, an outlet valve lever, a latch controlling the latter, and a ioat lever having a part disposed between said inlet valve lever and latch, and adapted to engage them alternately as the tank is operated.

e. In a flush tank apparatus, an inlet valve lever, an outlet valve lever, a latch controlling the latter, and a float lever having a laterally projecting pin disposed between said inlet valve lever and latch, and adapted to engage one or the other of said parts.

In a flush tank apparatus, an inlet valve lever, an outlet valve lever, a latch controlling the latter, and a oat lever pivoted alongside of said outlet valve lever, and having a laterally projecting pin disposedV between said inlet valve lever and latch.

6. In a liush tank apparatus, an inlet valve lever and a latch pivoted about a common center', an outlet valve lever having a catch adapted to be engaged by said latch, and a lioat lever having a projection arranged to engage said inlet valve lever when the float lever is in one position, and to engage and trip said latch when the Hoa-t lever reaches another position.

7. In a flush tank apparatus, an inlet valve lever and a latch pivoted about a common center, an outlet valve lever having a catch adapted to be engaged by said latch, a float lever, and means actuated by the movement thereof for operating both said latch and inlet valve lever.

8. In a flush tank apparatus, a pivoted outlet valve lever, a lug carried thereby, a pivoted latch adapted to engage said lever and lock said valve when moved to open position, and means arranged to engagesaid lug to limit the opening movement of said valve.

9. In a flush tank apparatus, a pivoted outlet valve lever, a lug carried thereby, a pivoted latch adapted to engage said lever and lock said valve when moved to open position, and means carried by said latch for engaging said` lug to limit the opening O movement of said valve.

10. In a flush tank apparatus, an outlet valve comprising a valve seat, and a valve member cooperating therewith, said valve member comprising' a relatively thin flat casing, and superposed disks of rigid and flexible material loosely mounted in said casing, and lcapable of movement relative thereto, said flexible material being arranged to engage said valve seat.

ll. In a flush tank apparatus, an outlet valve comprising a valve seat, and a valve member cooperating therewith, said valve member comprising a relatively thin fla-t casing, and supcrposed disks of rigid and flexible material loosely mounted in said casing, the center of said casing being provided with an internal projection about which said disks may freely pivot, so as to cause the iiexible disk to lie fiat against said seat.

l2. In a flush tank apparatus, the combination with an outlet valve comprising a seat and a valve member carried by a lever pivoted at a point located to one side of said seat, or' a guide bracket coperating with said lever, said guide bracket being mounted adjacent the seat, and angularly adjustable therearound.

18. In a flush tank apparatus having an outlet pipe, and pivoted outlet valve and lever cooperating therewith, a guide bracket comprising a ring adapted to surround the outlet pipe, and provided with a bifureated upstanding portion adapted to receive the outlet valve lever.

In testimony whereof I aiiiX my signature.

IVILLIAM RALPH HURSEY.

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